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Prime Tuple Database
Prime p0= 1991101203501836689 starts a
Symmetric tuple of 20 consecutive primes (SPT).
dn: 0 18 12 54 18 22 8 6 22 30 32 30 22 6 8 22 18 54 12 18 (?)
an: 0 18 30 84 102 124 132 138 160 190 222 252 274 280 288 310 328 382 394 412
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 412
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=20, 18 12 54 18 22 8 6 22 30 32
dn: 0 18 12 54 18 22 8 6 22 30 32 30 22 6 8 22 18 54 12 18 (?)
an: 0 18 30 84 102 124 132 138 160 190 222 252 274 280 288 310 328 382 394 412
All 20 integers pn = p0+an = pn-1+dn are prime and there are no other primes in the gaps.
diameter: 412
Found by: [AF>Amis des Lapins] Phil1966
db: batch=80, k=20, 18 12 54 18 22 8 6 22 30 32
| SPT(16) | 1991100043113956461 | 0 18 30 78 102 130 148 168 310 330 348 376 400 448 460 478 | -1160387880228 |
| STPT(10) | 1991100168456957539 | 0 2 18 20 60 62 102 104 120 122 | -1035044879150 |
| STPT(10) | 1991100299549807177 | 0 2 30 32 42 44 54 56 84 86 | -903952029512 |
| SPT(16) | 1991100565022994949 | 0 12 30 34 60 88 112 168 184 240 264 292 318 322 340 352 | -638478841740 |
| TPT(14) | 1991100656407520561 | 0 2 36 38 96 98 138 140 198 200 210 212 288 290 | -547094316128 |
| SPT(16) | 1991101108465838167 | 0 12 22 54 60 84 126 144 172 190 232 256 262 294 304 316 | -95035998522 |
| STPT(10) | 1991101481327652509 | 0 2 12 14 30 32 48 50 60 62 | 277825815820 |
| STPT(10) | 1991101976130720329 | 0 2 30 32 60 62 90 92 120 122 | 772628883640 |
| SPT(16) | 1991102798562562939 | 0 30 52 60 70 154 168 192 220 244 258 342 352 360 382 412 | 1595060726250 |
| STPT(10) | 1991103368384943047 | 0 2 42 44 72 74 102 104 144 146 | 2164883106358 |
| SPT(16) | 1991103851128207121 | 0 8 26 38 48 56 92 140 228 276 312 320 330 342 360 368 | 2647626370432 |
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